Quarterly report pursuant to Section 13 or 15(d)

Stockholder's Equity - Additional Information (Detail)

v2.4.0.8
Stockholder's Equity - Additional Information (Detail) (USD $)
3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended 9 Months Ended 9 Months Ended 9 Months Ended 9 Months Ended 9 Months Ended 0 Months Ended 9 Months Ended 9 Months Ended 12 Months Ended
Aug. 31, 2014
Aug. 31, 2013
Aug. 31, 2014
Aug. 31, 2013
Aug. 31, 2014
Employee Stock Incentive Plan [Member]
Aug. 31, 2013
Employee Stock Incentive Plan [Member]
Aug. 31, 2014
Employee Stock Incentive Plan [Member]
Aug. 31, 2013
Employee Stock Incentive Plan [Member]
Aug. 31, 2014
Market-Based Vesting Condition Options [Member]
Nov. 30, 2013
Market-Based Vesting Condition Options [Member]
Aug. 31, 2014
Performance Shares [Member]
Aug. 31, 2014
Performance and Market-Based Vesting Condition Options [Member]
Nov. 30, 2013
Performance and Market-Based Vesting Condition Options [Member]
Aug. 31, 2014
Restricted Common Shares [Member]
Aug. 31, 2014
David Portnoy [Member]
Restricted Common Shares [Member]
Aug. 31, 2014
Mark Portnoy [Member]
Restricted Common Shares [Member]
Aug. 31, 2014
2000 Plan [Member]
Aug. 31, 2014
2000 Plan [Member]
Employee Stock Incentive Plan [Member]
Nov. 30, 2013
2000 Plan [Member]
Employee Stock Incentive Plan [Member]
Aug. 31, 2014
2000 Plan [Member]
Employee Stock Incentive Plan [Member]
Minimum [Member]
Aug. 31, 2014
2000 Plan [Member]
Employee Stock Incentive Plan [Member]
Maximum [Member]
Aug. 31, 2014
2012 Plan [Member]
Aug. 31, 2014
2012 Plan [Member]
Service Based Option [Member]
Nov. 30, 2013
2012 Plan [Member]
Service Based Option [Member]
Aug. 31, 2014
2012 Plan [Member]
Service Based Restricted Shares [Member]
Aug. 31, 2014
2012 Plan [Member]
Performance Based Options [Member]
Nov. 30, 2013
2012 Plan [Member]
Performance Based Options [Member]
Aug. 31, 2014
2012 Plan [Member]
Market Based Options [Member]
Nov. 30, 2013
2012 Plan [Member]
Market Based Options [Member]
Aug. 31, 2014
2012 Plan [Member]
Restricted Common Shares [Member]
Dec. 01, 2013
2012 Plan [Member]
David Portnoy [Member]
Restricted Common Shares [Member]
Dec. 01, 2013
2012 Plan [Member]
Mark Portnoy [Member]
Restricted Common Shares [Member]
May 31, 2012
2012 Plan [Member]
Scenario, Previously Reported [Member]
May 31, 2012
2012 Plan [Member]
Amendment [Member]
Aug. 31, 2014
2012 Plan [Member]
Scenario, Forecast [Member]
Restricted Common Shares [Member]
December One Two Thousand Fourteen [Member]
Aug. 31, 2014
2012 Plan [Member]
Scenario, Forecast [Member]
Restricted Common Shares [Member]
December One Two Thousand Fifteen [Member]
Aug. 31, 2014
2006 Plan [Member]
Aug. 31, 2014
2006 Plan [Member]
Employee Stock Incentive Plan [Member]
Nov. 30, 2013
2006 Plan [Member]
Employee Stock Incentive Plan [Member]
Aug. 31, 2014
Stock Option [Member]
Aug. 31, 2013
Stock Option [Member]
Aug. 31, 2014
Stock Option [Member]
Performance Shares [Member]
Nov. 30, 2013
Stock Option [Member]
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                                                                      
Number of share issued to option holder         13,750 2,500 46,246 10,000                                                               46,246 10,000    
Stock options exercised, value         $ 22,238 $ 3,125 $ 70,902 $ 14,950                                                                      
Common stock for issuance pursuant to stock options or restricted stock                                   2,250,000                             1,500,000 2,500,000       1,000,000          
Term of options                                       5 years 7 years                                            
Vesting period ranging from, date of grant                                   3 years                                                  
Options exercisable period after termination                                   90 days                                                  
Granted, Shares                          640,000         2,500 12,500       400,000 400,000 129,729 261,488 400,000 87,162 200,000                 585,597 739,760        
Shares issued under stock incentive plans                                   0       1,621,621                               274,511          
Granted, Shares 0   0                                                                                 
Options exercised                                                                               70,902 14,950    
Unrecognized compensation cost related to non-vested share-based compensation arrangements granted                 0   7,500 0   100,000     5,400         5,400                             5,400            
Weighted-average period                                                                               6 months 22 days      
Total fair value of shares vested                                                                               125,000      
Performance-based or market based vesting condition options 0 0 0 0                                                                              
Granted, Shares                   213,334                                                                 426,666
Options forfeited                 213,334                                                                 426,666  
Share based compensation recognized on achievement of performance targets                       0                                                              
Compensation expenses recognized without performance target achievement                       0                                                              
Shares granted during period                                                              70,270 59,459                      
Share based compensation, percentage of vesting upon grant                                                           33.33%         33.33% 33.33%              
Share based compensation vested period fair value                                                           $ 80,000                          
Maximum restricted common shares granted                             186,487 162,163                                                      
Description of minimum requirement to be satisfied by employee for restricted common share                           The Employment Agreements state if David Portnoy and Mark Portnoy are employed by the Company on November 30, 2014, then no later than February 15, 2015, the Company will grant up to 186,487 and 162,163 shares of restricted common shares, respectively, based on certain performance thresholds, as defined in the agreements.                                                          
Additional restricted common shares to be granted                             186,487 162,163                                                      
Description of minimum requirement to be satisfied by employee for additional restricted common share                           In addition, if David Portnoy and Mark Portnoy are employed by the Company on November 30, 2015, then no later than February 15, 2016, the Company will grant up to an additional 186,487 and 162,163 shares of restricted common shares, respectively, based on similar performance thresholds, as defined in the agreements.